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If the unit is located in a windy area, it is recommended to install a non-combustible type of skirting
around the feet and control area.
B. Chimney:
A stainless steel rain cap (5” for 120 model, 6” for 175, 250 & 325G) must be purchased separately
for installation and can be obtained from Nature’s Comfort or your dealer. If installing extensions,
use supports as directed by pipe manufacturer. It is recommended that the boiler be located with
due consideration to the prevailing wind direction.
1
It is recommended that the stack be at least 2 feet higher than the peak roof line the nearest
residence.
2
If located more than 100 feet but no more than 150 feet to any residence, it is recommended
that the stack be at least 50% of the peak roof line of that residence, plus an additional 2 feet.
3
If located more than 150 feet but no more than 200 feet to any residence, it is recommended
that the stack be at least 25% of the height of the peak roof line of that residence, plus an additional
2 feet.
Example of chimney height relative to nearest downwind neighbor
Always comply with all applicable state and local codes and laws.
C. Underground Insulated Pex Pipe
You must use underground insulated pex pipe for transferring the heated water from the boiler to
the home. Minimum pipe size permitted is 1”. Platinum 3 wrap (4” drain tile) & Platinum 4 wrap (5”
drain tile) insulated pipe is available for purchase through Nature’s Comfort or your dealer. It may
contain twine for pulling electrical wire. If possible, do this with the pipe laid out straight for ease of
pulling.
CALL YOUR LOCAL MISS DIG HOTLINE BEFORE YOU DIG TRENCHES!
Bury the underground insulated pipe below frost lines (or just above water table level) and keep
underground as it enters the house. The depth of the trench varies in different regions of the
country. Be completely sure about the correct depth needed before the insulated pex pipe is
installed underground. Contact your local building inspector’s office for this information. Make sure
to seal around the corrugated pipe to prevent water from entering. If conditions require the pipe to
be above ground for entering the home, make sure to insulate thoroughly.
Note:
If only one color of PEX pipe is used, label the water lines or connect and test them before
back filling over pipe and lines. If you have rocky ground, make sure you use clean fill or place
straw or landscape fabric around the pipe before back filling, giving extra protection against
punctures.
If more than one building is to be heated, additional pipe and pump must be installed.
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